New Install. WiFi working but no networks show up.
I've installed 18.2 as the only OS on a first generation MacBook Air using a USB stick. The wireless card is on, but no networks are showing up in the list. From another computer, I downloaded the Broadcom b43-cutter-installer wireless card installer and the B43 driver for my wireless card (PCI.ID [14e4:4328]).
Here are the steps I took: Code:
sudo b43-fwcutter -w /lib/firmware broadcom-wl-5.100.138/linux/wl_apsta.o Code:
$ lspci -knn | grep Net -A3; rfkill list I can successfully select and login into my WiFi network when I start the install, but it doesn't retain that info after it finishes and I have to install the Broadcom drivers. It has worked once and I was able to update the default packages. I was able to reboot immediately after that and get an Internet connection. The next day, I don't have a connection anymore and can't see the WiFi networks. I tried disabling and re-enabling the Broadcom driver. Can anyone see what's wrong or tell me what else to try? Thank you, in advance, for your help. |
What is the output of the following command:
Code:
ifconfig |
Am I Going Li-nuts?
Ok, I just rebooted the machine to run those commands in Terminal and when I did, the machine connected to my network with the preferred connection and now shows the wifi access points in the list when I click on the wifi icon in the task bar. I have rebooted this somewhere around 10 times before this on different days hoping for a connection, but didn't get one. It waited until after I posted on this forum to start working. [Arrrg!!!]
But maybe something else is going on. I've seen others mentioning dropped connections or a loss of wifi connections in their list after updating. Is this Broadcom driver less reliable than others? Is there a better one that I should use? Please tell me how to gracefully uninstall this and install the better one (if there is one). Thank you. Here is the output of the ifconfig statement now that I DO have a connection: Code:
$ ifconfig Code:
$ ip addr Code:
$ iwconfig |
On one day, off the next.
The wifi networks are not showing up today. Yesterday it worked fine, even after rebooting.
Here is the output of ifconfig and ip addr: Code:
$ ifconfig Any ideas? |
always test with ping, twofold:
Code:
ping 8.8.8.8 a working ping looks like this: Code:
ping 8.8.8.8 |
Quote:
For what it's worth, I think something more is going on. |
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Try this; Code:
iwinfo wlan0 scan Quote:
Quote:
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As Frankbell has suggested it does look like 'something more is going on'. It may well be a USB power management issue. Some users have found TLP useful for taming power management in laptops...
http://linrunner.de/en/tlp/docs/tlp-...anagement.html You may need to install it first Code:
sudo add-apt-repository ppa:linrunner/tlp Then blacklist power management (USB autosuspending) for this device (configured in /etc/default/tlp)... Code:
USB_BLACKLIST="106b:008b" http://linrunner.de/en/tlp/docs/tlp-...ation.html#usb Hope that helps. |
Gave up. Re-Installed. Working...better
@ferrari: there was definitely something else going on, but we'll never know what it was. I bought a USB Ethernet dongle on Amazon and reinstalled (The lesson learned is to try to get a wired connection to make life easier.)
I'm still having dropoff issues with my connection and am installing TLP, but I have a question. Here's is the output of lsusb: Code:
$ lsusb How did you get that range and what is it for? Respectfully, |
I didn't give a range - I gave a specific chipset (106b:008b), which was the one listed in the output in your opening post pertaining to the wireless device. If you read the reference I provided a link to, it explains how to exclude particular devices (by chipset) from USB autosuspending. YMMV.
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